Eidos use Web worker and Service worker to do some important work in background.
sqlite-wasm run in web worker which handle all database operation. query, insert, update, delete, etc.
request-response model is used to communicate between main thread and web worker.
react component => react hooks => sqlite-wasm => OPFS
service worker like a Web server in browser. it can handle request and response.
- cache static files
- handle request from client, proxy files from OPFS.
http://eidos.space/myspace/files/abc.jpg=> /spaces/myspace/files/abc.jpg